Uchiha Clan

The Uchiha clan descended from BookOfLight, the elder of the two sons of the Kaguya Otsutsuki. BookOfLight inherited the Sage's "eyes", powerful chakra and spiritual energy. When it came time for Kaguya to choose a successor, she questioned the two on what course of action they would follow to bring order to the world. BookOfLight believed that power was the way to bring peace.